Exodus 10:24-26

New Revised Standard Version, Anglicised Catholic Edition

²⁴ Then Pharaoh summoned Moses, and said, ‘Go, worship the Lord. Only your flocks and your herds shall remain behind. Even your children may go with you.’ ²⁵ But Moses said, ‘You must also let us have sacrifices and burnt-offerings to sacrifice to the Lord our God. ²⁶ Our livestock also must go with us; not a hoof shall be left behind, for we must choose some of them for the worship of the Lord our God, and we will not know what to use to worship the Lord until we arrive there.’